Tool.



3. 8 HANNAM TOOL.

APPLICATIOK FILED DEC- 15. 1916.

1,281,950. Patented Oct. 15, 1918.

shelter: B. HANNAH, or 'MAmoiv, innIAnA.

moon.

' p e'c ification of Letters latent.

Patented 0a. "15,1918.

"Application file'd December 15,1916. serial No. 13?;140.

Be it known that I, GEORGE B. HKLVNAN, a citizen of the United States,residing at Marion, in the county of Grant and State of Indiana, haveinvented certain new and useful Improvements in Tools; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to tools and more particularlv to a deviceespecially designed for tinners use for forming sheet metal pipes.

The invention has for its object to provide a pipe forming tool of noveland eflicient construction embodying essentially two detachable parts,one of which is provided with a shank adapted to be engaged between thejaws of a vise or in the aperture ordinarily provided in the heel or toeof an anvil, whereby the tool may be held stationary during use.

Another object is the provision of a pipe forming tool embodying meanswhereby pipes of different diameters may be formed thereon.

With these and other objects in view, the invention consists in thenovel construction, arrangement and formation of parts as will behereinafter specifically described, claimed and illustrated in theaccompanying draw ing, in which:

I Figure 1 represents a perspective view of the improved pipe formingtool.

Fig. 2 represents a fragmental perspective view of one of the parts ofthe tool removed from the other.

Fig. 3 represents a fragmental perspective view of the other part of thetool removed,

' and is "formed shank 5 isprovided with a head Gin which a recess 7having a concavity 10 in the lower wall thereof. A pipe former ormandrel 8 is rigidly secured to or formed integral with the head 6 andprojects laterally therefrom, and the end wall of the recess 7 is formedwith a seat 11 adapted to receive the projection or stud 12 formedintegral with and projecting longitudinally of the other part of thetool which is designated generally by the numeral 13. The stud 12 isformed upon the head 14 of the removable part 13 of the tool and thelower surface of the head is formed with a convex enlargement 15 adaptedto engage within the concavity 10 in the head 6 of the other orstationary part. A pipe former or mandrel 16 is carried by the head 14of the removable part and is of a different diameter from the mandrel 8,whereby pipes of differentldiameters may be formed with the same too Thehead 6 is formed with a longitudinal extension 17 in which is fitted athumb screw 18 adapted to project into an internally screwthreadedaperture 19 formed in the lower surface of the head 14 of the relativelymovable part, whereby the parts of the tool may be rigidly andefiectively secured together. It will be understood that any desirednumber of the removable parts 13 of each tool may be provided, eachmandrel 16 of the removable part size, whereby pipes of variousdiameters may be formed with the same tool.

What I claim is:

' 1. In a tool, a shank, a head formed upon the upper end of said shankand having a concave recess formed in its upper surface terminatingshort of one end of the head, a socket formed in the wall at the innerend of the recess, a second head, a convex enlargement formed upon theunder surface of said second head for seating in said recess, a lugformed upon the inner end of said second head for seating in saidsocket, and a mandrel formed upon said second head and extendingoutwardly from the ends thereof oppositely to the lug carrying end.

2. In a tool, a shank, a head formed upon the upper end of said shankand having a concave recess formed in its upper surface terminatingshort of one end of the head, a socket formed in the wall at the innerend of the recess, a second head, a convex enlargement formed upon theunder surface of the being of a difierent second head for seating insaid recess, a lug formed upon the inner end of said second head forseating in said socket, a mandrel formed upon said second head andextending outwardly from the end of the head oppositely to the lugcarrying end, an ear formed upon said first named head for abutmentagainst the under surface of said enlargement, and a set screw carriedby said ear and extending into said enlargement. 10 In testnnony whereofI affix my signature in presence of two Witnesses.

GEORGE E. HANNAN. Witnesses:

CHARLES GARTHWAIT, Unvinnn Ronsn.

Copies of this patent may be ebtained for five cents each, by eddiessingthe Eon-missions: of Eat/ants, Washington, 33. it

